Choose each correct statement below. a. The gastrodermis contains various cell types and develops from the endoderm during development.
b. The gastrodermis is associated with movement of cnidarians.
c. The epidermis contains various cell types and develops from the endoderm during development.
d. The epidermis is associated with sensing the environment and prey capture.

a. The gastrodermis contains various cell types and develops from the endoderm during development.

d. The epidermis is associated with sensing the environment and prey capture.

Explanation:

Most cnidarians have two layers of cells organized into some luck of tissues that have specific functions.

Cnidarians' body organization is simple: It is a hollow structure composed of two cellular layers: epidermis, which is the external layer, and gastrodermis that is the internal layer, formed by lining cells in the gastrovascular cavity. Between these two layers, place the mesoglea that varies from a thin non-cellular membrane to a mucous, fibrous, thick membrane with amebocytes.      

Epidermis and gastrodermis originate from two embryonic tissues, the ectoderm, and the endoderm, respectively.

The epidermis has five types of cells with different functions: epitheliomuscular, interstitial, cnidoblasts, secretors, and sensorial.

Gastrodermis is composed of cells such as nutritive cells, glandular enzymatic cells, secretory cells, and sensory cells.  

g1

choices:

a. g2. b. g1. c. m

cell division has two checkpoints namely, g1

checkpoint and spindle assembly checkpoint. the checkpoint which determines if

division has properly occurred is the g1 checkpoint. at this point, is a damage

in the dna is detected or  the has not reach the optimum size, the cell is

stopped in g1 and is not allowed to proceed to further process.

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